On Wednesday 12 February 2014 02:43 AM, Kirill Tkhai wrote: > > > 06.01.2014, 07:56, "Allen Pais" <allen.pais@xxxxxxxxxx>: >> In the attempt of get PREEMPT_RT working on sparc64 using >> linux-stable-rt version 3.10.22-rt19+, the kernel crash >> with the following trace: >> >> [ 1487.027884] I7: <rt_mutex_setprio+0x3c/0x2c0> >> [ 1487.027885] Call Trace: >> [ 1487.027887] [00000000004967dc] rt_mutex_setprio+0x3c/0x2c0 >> [ 1487.027892] [00000000004afe20] task_blocks_on_rt_mutex+0x180/0x200 >> [ 1487.027895] [0000000000819114] rt_spin_lock_slowlock+0x94/0x300 >> [ 1487.027897] [0000000000817ebc] __schedule+0x39c/0x53c >> [ 1487.027899] [00000000008185fc] schedule+0x1c/0xc0 >> [ 1487.027908] [000000000048fff4] smpboot_thread_fn+0x154/0x2e0 >> [ 1487.027913] [000000000048753c] kthread+0x7c/0xa0 >> [ 1487.027920] [00000000004060c4] ret_from_syscall+0x1c/0x2c >> [ 1487.027922] [0000000000000000] (null) >> Now, consistently I've been getting sun4v_data_access_exception. Here's the trace: [ 4673.360121] sun4v_data_access_exception: ADDR[0000080000000000] CTX[0000] TYPE[0004], going. [ 4673.360124] \|/ ____ \|/ [ 4673.360124] "@'/ .. \`@" [ 4673.360124] /_| \__/ |_\ [ 4673.360124] \__U_/ [ 4673.360128] hackbench(4183): Dax [#1] [ 4673.360137] CPU: 5 PID: 4183 Comm: hackbench Tainted: G W 3.10.24-rt22+ #12 [ 4673.360141] task: fffff80f9c793840 ti: fffff80f9b270000 task.ti: fffff80f9b270000 [ 4673.360146] TSTATE: 0000004411e01606 TPC: 0000000000407b64 TNPC: 0000000000407b68 Y: 00000000 Tainted: G W [ 4673.360157] TPC: <tsb_flush+0x4/0x40> [ 4673.360160] g0: fffff80f9c7c54b8 g1: 0000000000000001 g2: 0000000000008000 g3: 0000000000000000 [ 4673.360163] g4: fffff80f9c793840 g5: fffff80fcfc9c000 g6: fffff80f9b270000 g7: 0000000000000000 [ 4673.360167] o0: 0000080000000130 o1: 000003ffffe00400 o2: 0000000000878e48 o3: 0000000000000000 [ 4673.360170] o4: 0000000000000002 o5: 0000000000000000 sp: fffff80f9b272ec1 ret_pc: 00000000004520d0 [ 4673.360177] RPC: <flush_tsb_user+0x70/0x120> [ 4673.360180] l0: 0000000000000001 l1: fffff80fd0800870 l2: 0000080000000000 l3: 00000000000001ff [ 4673.360183] l4: fffff80f9852ea00 l5: fffff80f9852ee10 l6: 0000000000a87000 l7: 0000000000000000 [ 4673.360185] i0: fffff80fd0800868 i1: 0000000000000000 i2: 0000000000000000 i3: 0000000000000000 [ 4673.360187] i4: 0000000000000002 i5: 0000000000000030 i6: fffff80f9b272f71 i7: 00000000004515a8 [ 4673.360192] I7: <flush_tlb_pending+0x68/0xe0> [ 4673.360193] Call Trace: [ 4673.360198] [00000000004515a8] flush_tlb_pending+0x68/0xe0 [ 4673.360203] [000000000045185c] arch_leave_lazy_mmu_mode+0x3c/0x60 [ 4673.360210] [000000000052e520] unmap_single_vma+0x400/0x6c0 [ 4673.360213] [000000000052e808] unmap_vmas+0x28/0x60 [ 4673.360220] [0000000000530cc8] exit_mmap+0x88/0x160 [ 4673.360226] [000000000045e0d4] mmput+0x34/0xe0 [ 4673.360236] [00000000004669fc] do_exit+0x1fc/0xa40 [ 4673.360241] [0000000000467270] do_group_exit+0x30/0xe0 [ 4673.360245] [000000000046733c] SyS_exit_group+0x1c/0x40 [ 4673.360256] [0000000000406234] linux_sparc_syscall+0x34/0x44 [ 4673.360260] Caller[00000000004515a8]: flush_tlb_pending+0x68/0xe0 [ 4673.360264] Caller[000000000045185c]: arch_leave_lazy_mmu_mode+0x3c/0x60 [ 4673.360267] Caller[000000000052e520]: unmap_single_vma+0x400/0x6c0 [ 4673.360270] Caller[000000000052e808]: unmap_vmas+0x28/0x60 [ 4673.360274] Caller[0000000000530cc8]: exit_mmap+0x88/0x160 [ 4673.360277] Caller[000000000045e0d4]: mmput+0x34/0xe0 [ 4673.360280] Caller[00000000004669fc]: do_exit+0x1fc/0xa40 [ 4673.360284] Caller[0000000000467270]: do_group_exit+0x30/0xe0 [ 4673.360287] Caller[000000000046733c]: SyS_exit_group+0x1c/0x40 [ 4673.360291] Caller[0000000000406234]: linux_sparc_syscall+0x34/0x44 - Allen -- To unsubscribe from this list: send the line "unsubscribe sparclinux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
